Fix problems with upper-case in domain-match.

The domain-match rewrite didn't take into account
that domain names are case-insensitive, so things like

--address=/Example.com/.....

didn't work correctly.

src/dnsmasq.h

@@ -1376,6 +1376,7 @@ void safe_pipe(int *fd, int read_noblock);
 void *whine_malloc(size_t size);
 int sa_len(union mysockaddr *addr);
 int sockaddr_isequal(const union mysockaddr *s1, const union mysockaddr *s2);
+int hostname_order(const char *a, const char *b);
 int hostname_isequal(const char *a, const char *b);
 int hostname_issubdomain(char *a, char *b);
 time_t dnsmasq_time(void);

src/domain-match.c

@@ -494,7 +494,7 @@ static int order(char *qdomain, size_t qlen, struct server *serv)
   if (qlen > dlen)
     return -1;
 
-  return strcmp(qdomain, serv->domain);
+  return hostname_order(qdomain, serv->domain);
 }
 
 static int order_servers(struct server *s1, struct server *s2)

src/forward.c

@@ -170,8 +170,8 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
   unsigned int fwd_flags = 0;
   int is_dnssec = forward && (forward->flags & (FREC_DNSKEY_QUERY | FREC_DS_QUERY));
   struct server *master;
-  unsigned int gotname = extract_request(header, plen, daemon->namebuff, NULL);
   void *hash = hash_questions(header, plen, daemon->namebuff);
+  unsigned int gotname = extract_request(header, plen, daemon->namebuff, NULL);
   unsigned char *oph = find_pseudoheader(header, plen, NULL, NULL, NULL, NULL);
   int old_src = 0, old_reply = 0;
   int first, last, start = 0;

src/util.c

@@ -367,7 +367,7 @@ int sa_len(union mysockaddr *addr)
 }
 
 /* don't use strcasecmp and friends here - they may be messed up by LOCALE */
-int hostname_isequal(const char *a, const char *b)
+int hostname_order(const char *a, const char *b)
 {
   unsigned int c1, c2;
   
@@ -380,11 +380,19 @@ int hostname_isequal(const char *a, const char *b)
     if (c2 >= 'A' && c2 <= 'Z')
       c2 += 'a' - 'A';
     
-    if (c1 != c2)
-      return 0;
+    if (c1 < c2)
+      return -1;
+    else if (c1 > c2)
+      return 1;
+    
   } while (c1);
   
-  return 1;
+  return 0;
+}
+
+int hostname_isequal(const char *a, const char *b)
+{
+  return hostname_order(a, b) == 0;
 }
 
 /* is b equal to or a subdomain of a return 2 for equal, 1 for subdomain */